orob2                  package:aod                  R Documentation

_G_e_r_m_i_n_a_t_i_o_n _D_a_t_a

_D_e_s_c_r_i_p_t_i_o_n:

     "A 2 x 2 factorial experiment comparing 2 types of seed and 2 root
     extracts. There are 5 or 6 replicates in each  of the 4 treatment
     groups, and each replicate comprises a number of seeds varying
     between 4 and 81. The response  variable is the proportion of
     seeds germinating in each replicate." (Crowder, 1978, Table 3).

_U_s_a_g_e:

     data(orob2)

_F_o_r_m_a_t:

     A data frame with 21 observations on the following 4 variables.

     _s_e_e_d a factor with 2 levels: 'O73' and 'O75'.

     _r_o_o_t a factor with 2 levels 'BEAN' and 'CUCUMBER'.

     _n a numeric vector: the number of seeds exposed to germination.

     _y a numeric vector: the number of seeds which actually germinated.

_R_e_f_e_r_e_n_c_e_s:

     Crowder, M.J., 1978. _Beta-binomial anova for proportions_. Appl.
     Statist. 27, 34-37.

